public void SdkOnTelemetryUpdated(iRacingData telemetry)
{
// Cache info
_telemetry = telemetry;
// Update drivers telemetry
this.UpdateDriverTelemetry(telemetry);
}
public void ParseTelemetry(iRacingData e, Boolean isRaceOrQualifying)
{
LapDistance = Math.Abs(e.CarIdxLapDistPct[Driver.Id]);
// We need to make sure we start the first lap(IsNewLap), we cant use LapsCompleted for this as it does not increas first time we cross the s/f line but CarIdxLap does so we use that.
// we only wanna do this for opponents in race and qualifying
insertStartLap = (startLapInserted == false && Lap < e.CarIdxLap[Driver.Id] && e.CarIdxLap[Driver.Id] > 0) && ((Driver.IsCurrentDriver) || (isRaceOrQualifying && !Driver.IsCurrentDriver));
Lap = e.CarIdxLap[Driver.Id];
TrackSurface = e.CarIdxTrackSurface[Driver.Id];
// turns out that the other method for setting the current sector was flawed as when first connecting it would set sector to 1 and then it would be unable to switch to sector 3 when gridding up,
// so catching crossing the s/f line when the light goes green to set a HasCrossedSFLine didnt happen.
CurrentSector = GetCurrentSector();
IsNewLap = false;
if (_prevSector == 3 && (CurrentSector == 1) ||
(LapsCompleted < _driver.CurrentResults.LapsComplete && !_driver.IsCurrentDriver && TrackSurface == TrackSurfaces.NotInWorld) || (insertStartLap && !Driver.IsCurrentDriver && !hasCrossedSFLineToStartRace))
{
// make sure we dont this on the opening lap more then once
hasCrossedSFLineToStartRace = true;
HasCrossedSFLine = true;
// This is not accurate for playes that are not in live telemetry but its not used in any calculations in this case.
GameTimeWhenLastCrossedSFLine = (float)e.SessionTime;
}
else
{
HasCrossedSFLine = false;
}
if (_prevSector != CurrentSector)
{
_prevSector = CurrentSector;
}
if (_driver.CurrentResults.LapsComplete > LapsCompleted || insertStartLap)
{
startLapInserted = true;
IsNewLap = true;
}
LapsCompleted = _driver.CurrentResults.LapsComplete;
CorrectedLapDistance = FixPercentagesOnLapChange(LapDistance);
LiveLapsCompleted = e.CarIdxLapCompleted[Driver.Id] < LapsCompleted ? LapsCompleted : e.CarIdxLapCompleted[Driver.Id];
Gear = e.CarIdxGear[Driver.Id];
Rpm = e.CarIdxRPM[Driver.Id];
//for local player we use data from telemetry as its updated faster then session info,
//we do not have lastlaptime from opponents available in telemetry so we use data from sessioninfo.
if (Driver.Id == e.PlayerCarIdx)
{
LapTimePrevious = e.LapLastLapTime;
}
else
{
LapTimePrevious = _driver.CurrentResults.LastTime;
}
PreviousLapWasValid = LapTimePrevious > 1;
TotalLapDistanceCorrected = TotalLapDistance;
}
private void UpdateDriverTelemetry(iRacingData info)
{
foreach (var driver in _drivers)
{
driver.Live.CalculateSpeed(info, _sessionData.Track.Length);
driver.UpdateLiveInfo(info, _isRaceOrQualifying);
}
this.CalculateLivePositions(info);
}
internal void UpdateLiveInfo(iRacingData e, Boolean isRaceOrQualifying)
{
this.Live.ParseTelemetry(e, isRaceOrQualifying);
}
public override Object ReadGameData(Boolean forSpotter)
{
lock (this)
{
if (!initialised)
{
if (!InitialiseInternal())
{
throw new GameDataReadException("Failed to initialise shared memory");
}
}
try
{
if (sdk.IsConnected())
{
if (sim == null)
{
sim = new Sim();
}
if (forSpotter)
{
return((int)sdk.GetData("CarLeftRight"));
}
_DriverId = (int)sdk.GetData("PlayerCarIdx");
int newUpdate = sdk.Header.SessionInfoUpdate;
bool hasNewSessionData = false;
bool isNewSession = false;
if (newUpdate != lastUpdate)
{
var sessionNum = TryGetSessionNum();
if (sessionNum != null)
{
string sessionInfoUnFiltred = sdk.GetSessionInfoString();
if (sessionInfoUnFiltred == null)
{
return(null);
}
string sessionInfoFiltred = new SessionInfo(sessionInfoUnFiltred).Yaml;
isNewSession = sim.SdkOnSessionInfoUpdated(sessionInfoFiltred, (int)sessionNum, DriverId);
lastUpdate = newUpdate;
hasNewSessionData = true;
}
else
{
return(null);
}
}
iRacingData irData = new iRacingData(sdk, hasNewSessionData && dumpToFile, isNewSession);
sim.SdkOnTelemetryUpdated(irData);
iRacingStructWrapper structWrapper = new iRacingStructWrapper();
structWrapper.ticksWhenRead = DateTime.UtcNow.Ticks;
structWrapper.data = sim;
if (dumpToFile && dataToDump != null)
{
dataToDump.Add(new iRacingStructDumpWrapper()
{
ticksWhenRead = structWrapper.ticksWhenRead, data = irData
});
}
return(structWrapper);
}
else
{
return(null);
}
}
catch (Exception ex)
{
throw new GameDataReadException(ex.Message, ex);
}
}
}
public void CalculateSpeed(iRacingData telemetry, double?trackLengthKm)
{
if (telemetry == null)
{
return;
}
if (trackLengthKm == null)
{
return;
}
try
{
var t1 = telemetry.SessionTime;
var t0 = _prevSpeedUpdateTime;
var time = t1 - t0;
if (time < SPEED_CALC_INTERVAL)
{
// Ignore
return;
}
var p1 = telemetry.CarIdxLapDistPct[this.Driver.Id];
var p0 = _prevSpeedUpdateDist;
if (p1 < -0.5 || _driver.Live.TrackSurface == TrackSurfaces.NotInWorld)
{
// Not in world?
return;
}
if (p0 - p1 > 0.5)
{
// Lap crossing
p1 += 1;
}
var distancePct = p1 - p0;
var distance = distancePct * trackLengthKm.GetValueOrDefault() * 1000; //meters
if (time >= Double.Epsilon)
{
this.Speed = distance / (time); // m/s
}
else
{
if (distance < 0)
{
this.Speed = Double.NegativeInfinity;
}
else
{
this.Speed = Double.PositiveInfinity;
}
}
this.SpeedKph = this.Speed * 3.6;
_prevSpeedUpdateTime = t1;
_prevSpeedUpdateDist = p1;
}
catch (Exception)
{
//Log.Instance.LogError("Calculating speed of car " + this.Driver.Id, ex);
this.Speed = 0;
}
}
private void CalculateLivePositions(iRacingData telemetry)
{
if (!_raceSessionInProgress)
{
this._carIdxToGameTimeOffTrack.Clear();
}
// Assume race has finished.
this._raceSessionInProgress = false;
// In a race that is not yet in checkered flag mode,
// Live positions are determined from track position (total lap distance)
// Any other conditions (race finished, P, Q, etc), positions are ordered as result positions
SessionFlags flag = (SessionFlags)telemetry.SessionFlags;
if (this.SessionData.SessionType == "Race" && flag.HasFlag(SessionFlags.Checkered))
{
// We need to check if player is the first (p1) to cross the s/f line as HasCrossedSFLine is only true for 1 tick
if (raceEndState == RaceEndState.WAITING_TO_CROSS_LINE || _driver.Live.IsNewLap)
{
if (this._driver.Live.IsNewLap)
{
Console.WriteLine("Player just crossed line to finish race");
raceEndState = RaceEndState.FINISHED;
this._driver.FinishStatus = Driver.FinishState.Finished;
}
}
else if (raceEndState == RaceEndState.NONE)
{
Console.WriteLine("Starting wait for player crossing line");
raceEndState = RaceEndState.WAITING_TO_CROSS_LINE;
}
}
else
{
raceEndState = RaceEndState.NONE;
}
if (this.SessionData.SessionType == "Race" && raceEndState != RaceEndState.FINISHED &&
(flag.HasFlag(SessionFlags.StartGo) || flag.HasFlag(SessionFlags.StartHidden /*yellow?*/)) &&
telemetry.PlayerCarPosition > 0)
{
this._raceSessionInProgress = true;
// When driver disconnects (or in other cases I am not sure about yet), TotalLapDitance
// gets ceiled to the nearest integer. Because of that, for the reminder of a lap such car is
// ahead of others by TotalLapDitance, which results incorrect positions announced.
//
// To mitigate that, try detecting such cases and using floor(TotalLapDitance) instead.
//
// Also, try detecting cars that finished and use YAML reported positions instead for those.
if (this._gameTimeWhenWhiteFlagTriggered == -1.0 && flag.HasFlag(SessionFlags.White))
{
this._gameTimeWhenWhiteFlagTriggered = telemetry.SessionTime;
}
// Correct the distances
foreach (var driver in _drivers)
{
if (driver.IsSpectator || driver.IsPaceCar || driver.CurrentResults.IsOut)
{
continue;
}
if (Math.Floor(driver.Live.TotalLapDistanceCorrected) > driver.Live.LiveLapsCompleted)
{
driver.Live.TotalLapDistanceCorrected = (float)driver.Live.LiveLapsCompleted;
}
}
// If leader has not finished yet, check if he just did.
if (_leaderFinished == null && this._gameTimeWhenWhiteFlagTriggered != -1.0)
{
// See if leading driver crossed s/f line after race time expired.
foreach (var driver in _drivers.OrderByDescending(d => d.Live.TotalLapDistanceCorrected))
{
if (driver.IsSpectator || driver.IsPaceCar || driver.CurrentResults.IsOut)
{
continue;
}
if (driver.IsCurrentDriver)
{
// It appears that player s/f crossing time is set before the actual s/f crossing. So, for player "Finished" state
// rely on logic that waits for new lap crossing.
continue;
}
if (driver.Live.GameTimeWhenLastCrossedSFLine > this._gameTimeWhenWhiteFlagTriggered)
{
_leaderFinished = driver;
}
// Only check assumed leader by lapdist (skipping lapped vehicles, spectators etc).
break;
}
}
// Now, detect lapped and retired finishers.
foreach (var driver in _drivers)
{
if (_leaderFinished != null &&
driver.Live.GameTimeWhenLastCrossedSFLine >= _leaderFinished.Live.GameTimeWhenLastCrossedSFLine)
{
if (driver.IsCurrentDriver || driver.IsPaceCar)
{
// It appears that player s/f crossing time is set before the actual s/f crossing. So, for player "Finished" state
// rely on logic that waits for new lap crossing.
continue;
}
// Everyone, who crosses s/f after leader finished, finishes too.
driver.FinishStatus = Driver.FinishState.Finished;
}
// Try detecting disconnects. Save last time seen off world, and mark as disconnect if
// stays off world long enough.
if (driver.FinishStatus == Driver.FinishState.Unknown) // Don't do any processing for Finished and Retired.
{
if (driver.Live.TrackSurface == TrackSurfaces.NotInWorld)
{
var timeSinceOffWorld = -1.0;
if (!this._carIdxToGameTimeOffTrack.TryGetValue(driver.Id, out timeSinceOffWorld))
{
this._carIdxToGameTimeOffTrack.Add(driver.Id, telemetry.SessionTime);
}
else if (telemetry.SessionTime - timeSinceOffWorld > SECONDS_OFF_WORLD_TILL_RETIRED)
{
driver.FinishStatus = Driver.FinishState.Retired;
Console.WriteLine("Marking driver: " + driver.Name + " as retired.");
}
}
else
{
this._carIdxToGameTimeOffTrack.Remove(driver.Id);
}
}
if (driver.FinishStatus == Driver.FinishState.Retired &&
driver.Live.TrackSurface != TrackSurfaces.NotInWorld)
{
driver.FinishStatus = Driver.FinishState.Unknown;
Console.WriteLine("Driver: " + driver.Name + " was previously marked as retired, shown up again.");
}
}
// Determine live position from lap distance.
int pos = 1;
foreach (var driver in _drivers.OrderByDescending(d => d.Live.TotalLapDistanceCorrected))
{
if (driver.IsSpectator || driver.IsPaceCar || driver.CurrentResults.IsOut)
{
driver.Live.Position = 1001; // Make it obvious those guys are not tracked.
continue;
}
if (driver.FinishStatus == Driver.FinishState.Finished &&
driver.Live.TrackSurface == TrackSurfaces.NotInWorld)
{
// When finished driver disconnects, use game reported position.
// This should not mess up order of drivers following, because all the
// drivers are ordered by TotalLapDistanceCorrected.
driver.Live.Position = driver.CurrentResults.Position;
if (driver.Live.Position == 0)
{
driver.Live.Position = 1000; // Game sends nonsense again. Mark those so that they don't interfere with sorting anywhere.
}
}
else
{
driver.Live.Position = pos;
}
pos++;
}
}
else // Not Race or Finished.
{
// Clear out cached finished leader. Ugly data model, ugly workarounds :(
_leaderFinished = null;
_gameTimeWhenWhiteFlagTriggered = -1.0;
// In P or Q, set live position from result position (== best lap according to iRacing)
foreach (var driver in _drivers)
{
if (driver.IsSpectator || driver.IsPaceCar)
{
driver.Live.Position = 1001; // Make it obvious those guys are not tracked.
continue;
}
if (telemetry.CarIdxPosition[driver.Id] > 0 && raceEndState != RaceEndState.FINISHED)
{
driver.Live.Position = telemetry.CarIdxPosition[driver.Id];
}
else
{
driver.Live.Position = driver.CurrentResults.Position;
}
if (telemetry.CarIdxClassPosition[driver.Id] > 0 && raceEndState != RaceEndState.FINISHED)
{
driver.Live.ClassPosition = telemetry.CarIdxClassPosition[driver.Id];
}
else
{
driver.Live.ClassPosition = driver.CurrentResults.ClassPosition;
}
if (driver.Live.Position == 0)
{
driver.Live.Position = 1000; // Game sends nonsense again. Mark those so that they don't interfere with sorting anywhere.
}
if (driver.Live.ClassPosition == 0)
{
driver.Live.ClassPosition = 1000; // Game sends nonsense again. Mark those so that they don't interfere with sorting anywhere.
}
}
}
}
